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h3{font-size:1.55rem}.principle p{margin:16px 0 0;color:var(--muted)}.systems{display:grid}.system{display:grid;grid-template-columns:96px minmax(0,1fr);gap:24px;padding:32px 0;border-top:4px dotted var(--line)}.system:last-child{border-bottom:none}.system__index{padding-top:12px;font-size:.92rem;color:var(--muted)}.system__reference{display:inline-flex;align-items:center;min-height:32px;padding:0 10px;border:1px solid var(--line);border-radius:999px;background:#ffffff38;color:var(--muted);font-size:.76rem;font-weight:600;text-transform:uppercase}.system__reference--link{color:var(--text);transition:color .18s ease,border-color .18s ease}.system__reference--link:hover{color:var(--accent);border-color:var(--line-strong)}.system__body{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,.9fr);gap:32px}.system__summary h3{font-size:clamp(1.85rem,3.4vw,3rem)}.system__role,.event__role,.timeline-item__period,.background-heading{margin:0 0 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